{"id":10715,"date":"2024-09-13T17:04:35","date_gmt":"2024-09-13T09:04:35","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=10715"},"modified":"2024-09-13T17:04:35","modified_gmt":"2024-09-13T09:04:35","slug":"ale0054","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ale0054\/","title":{"rendered":"How to produce high-quality copper strips for terminals and what is the production process?"},"content":{"rendered":"

The production process of copper strip for terminals includes multiple steps, from raw materials to final products, involving smelting, rolling, annealing, surface treatment and other processes. The following is the general production process of copper strip for terminals:<\/p>\n

1. Preparation of copper raw materials<\/strong><\/p>\n

Material selection: Copper strips for terminals usually use high-quality electrolytic copper (copper content up to 99.9%) as raw materials to ensure the conductivity and mechanical properties of the copper strips.<\/p>\n

Smelting and casting: The electrolytic copper is placed in a furnace for smelting. The molten copper is made into copper ingots or copper rods through a casting process in preparation for the next step of rolling.<\/p>\n

2. Hot rolling<\/strong><\/p>\n

Heating: Heat the copper ingot or copper rod to an appropriate temperature to make it plastic.<\/p>\n

Rough rolling: The heated copper ingot is rolled through a rough rolling mill for multiple passes, gradually rolled into thicker copper plates or copper strips. The purpose of rough rolling is to make the material have a larger deformation and initially form the shape of a thin strip.<\/p>\n

Intermediate annealing: Intermediate annealing is carried out after rough rolling to eliminate the stress inside the material, restore the softness of the copper material, and ensure that the next step of rolling can proceed smoothly.<\/p>\n

3. Cold rolling<\/strong><\/p>\n

Finishing rolling: After the copper plate is cold rolled, the copper strip is further rolled to the required thickness. The number and pressure of cold rolling determine the final dimensional accuracy and surface quality of the copper strip. In the cold rolling process, it is particularly important to control the width-to-thickness ratio of the copper strip, especially when the width-to-thickness ratio needs to be as high as 100 times, which places extremely high demands on equipment and process.<\/p>\n

Re-annealing: Annealing is performed after cold rolling to further eliminate the internal stress generated during the rolling process and improve the ductility and toughness of the copper strip.<\/p>\n

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